1. Mathematics Unit 24: Support for the President
QUESTION 24.1
In Zedland, opinion polls were conducted to find out the level of support for the President in the forthcoming election. Four newspaper publishers did separate nationwide polls. The results for the four newspaper polls are shown below:
Newspaper 1: 36.5% (poll conducted on January 6, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 2: 41.0% (poll conducted on January 20, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 3: 39.0% (poll conducted on January 20, with a sample of 1000 randomly selected citizens with voting rights)
Newspaper 4: 44.5% (poll conducted on January 20, with 1000 readers phoning in to vote).
Which newspaper’s result is likely to be the best for predicting the level of support for the President if the election is held on January 25?
What do we want to find out?
What useful information do we know?
What other mathematical techniques do we need to apply?
What have we learned?

2. Mathematics Unit 24: Support for the President
QUESTION 24.1
In Zedland, opinion polls were conducted to find out the level of support for the President in the forthcoming election. Four newspaper publishers did separate nationwide polls. The results for the four newspaper polls are shown below:
Newspaper 1: 36.5% (poll conducted on January 6, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 2: 41.0% (poll conducted on January 20, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 3: 39.0% (poll conducted on January 20, with a sample of 1000 randomly selected citizens with voting rights)
Newspaper 4: 44.5% (poll conducted on January 20, with 1000 readers phoning in to vote).
Which newspaper’s result is likely to be the best for predicting the level of support for the President if the election is held on January 25?
What do we want to find out?
What useful information do we know?
What other mathematical techniques do we need to apply?
What have we learned?
Back to start

3. Mathematics Unit 24: Support for the President
QUESTION 24.1
In Zedland, opinion polls were conducted to find out the level of support for the President in the forthcoming election. Four newspaper publishers did separate nationwide polls. The results for the four newspaper polls are shown below:
Newspaper 1: 36.5% (poll conducted on January 6, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 2: 41.0% (poll conducted on January 20, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 3: 39.0% (poll conducted on January 20, with a sample of 1000 randomly selected citizens with voting rights)
Newspaper 4: 44.5% (poll conducted on January 20, with 1000 readers phoning in to vote).
Which newspaper’s result is likely to be the best for predicting the level of support for the President if the election is held on January 25?
What do we want to find out?
What useful information do we know?
What other mathematical techniques do we need to apply?
What have we learned?
Back to start

4. Mathematics Unit 24: Support for the President
QUESTION 24.1
In Zedland, opinion polls were conducted to find out the level of support for the President in the forthcoming election. Four newspaper publishers did separate nationwide polls. The results for the four newspaper polls are shown below:
Newspaper 1: 36.5% (poll conducted on January 6, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 2: 41.0% (poll conducted on January 20, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 3: 39.0% (poll conducted on January 20, with a sample of 1000 randomly selected citizens with voting rights)
Newspaper 4: 44.5% (poll conducted on January 20, with 1000 readers phoning in to vote).
Which newspaper’s result is likely to be the best for predicting the level of support for the President if the election is held on January 25?
What do we want to find out?
What useful information do we know?
What other mathematical techniques do we need to apply?
What have we learned?
Back to start

5. Mathematics Unit 24: Support for the President
QUESTION 24.1
In Zedland, opinion polls were conducted to find out the level of support for the President in the forthcoming election. Four newspaper publishers did separate nationwide polls. The results for the four newspaper polls are shown below:
Newspaper 1: 36.5% (poll conducted on January 6, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 2: 41.0% (poll conducted on January 20, with a sample of 500 randomly selected citizens with voting rights)
Newspaper 3: 39.0% (poll conducted on January 20, with a sample of 1000 randomly selected citizens with voting rights)
Newspaper 4: 44.5% (poll conducted on January 20, with 1000 readers phoning in to vote).
Which newspaper’s result is likely to be the best for predicting the level of support for the President if the election is held on January 25?
What do we want to find out?
What useful information do we know?
What other mathematical techniques do we need to apply?
What have we learned?
Back to start